iTunes thinking two distinct apps are the same one

I have an iPhone app that I created by copying an xCode project to another location and then renaming the project, executable, product etc. Lets say the original and the copy are app A and app B. If I install A to my phone with an ad hoc provisioning file, it installs and runs fine. The same is true for B. But if I first install A and then try to install B, it tells me B is already installed. Also, if I right click on B in iTunes and look at the .ipa file that is created, it is someti开发者_StackOverflow社区mes the same one that is created for A. So these two apps share something in common but I cant figure out what it is. Any ideas?

The iPhone identifies apps by the Bundle Identifier (also called the App ID) in the apps Info.plist. You can change this in Xcode in your Target Property Settings.